Op same place



(No Model.)

H. BEBER.

DESGCATING APPARATUS.

No. 303,915. Patened Aug, 19, 1884,

M T/VE5555 f VEN TU R Unirse Sfrn'rns Parent @Erica HENRY or DE wirr, NEW venir, AssrGNon 'ro CAROLINE H. nnEEn, or sai-IE PLAGE. y

'DESICCATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 303,915, dated august '19, 1884-.

(No model.)

To @ZZ whom it may concern.-

Beit known that I, HENRY BREER, of De IV itt, in the county of Onondaga, in the State of New York, have invented new and useful 5 Improvements in Desiceating Apparatus, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description. Y

This invention relates to further improvements on the desiccating apparatus for which I have obtained Letters Patent of the United States No. 286,897, dated October 16, 1883.

The object of my present improvement is to more perfectly utilize theheat generated in the furnace or .lire-box of the apparatus, and also to more eifectually guard against leakage `from the ends of the desiccating-cylinder;and to that end my invention consists in the construction and combination ot' parts, as hereinafter fully described, and specifically set forth in the claims.

Referring t0 the annexed. drawings, Figure I is a longitudinal vertical section of my iniproved desiccating apparatus; Fig. Il, a verti- 5 cal transverse section on line am, Fie. I, and Fig. III is a rear end View of the apparatus.

Similar letters of reference indicate corresponding parts.

G represents the desiccating-cylinder" arranged horizontally in a combustion-chamber, B, which completely surrounds and incloses said cylinder, the latter having open ends, one of which admits the products of combustion to the interior of the cylinder, and the opposite end emits the same from the cylinder to the chimney F.

A denotes the furnace or fire-box extended under that end of the cylinder which communicates with the chimney. The furnace o communicates at its inner end with the combustion-chamber B, as shown in Fig. 2 ofthe drawings, and across the said end of the furnace is arranged a movable damper, b, by which to control. the passage of the products 45 of combustion to the combustion-chamber.

A direct exit-line, D, is connected with the furnace and provided with a damper, d, by

the opening of which latter and the closing of the damper Z) the products of combustion can 5obe completely excluded from the combustionchamber B, whenever. it is necessary to cool the dcsiccati ng-cylind er C. lVhen the damper b is opened and the damper (l closed, the products oi combustion pass Afrom the furnace into the combustionchamber and circulate 5 5 around the cylinder C, and thence enter the rear end thereof at the upper part of the combustion-chamber and pass, through the eylinder to the chimney F, as aforesaid.

In order to obtain greater heating-surface 6o ofthe cylinder (l, and thus render the same more eiiicient, I extend transversely through the cylinder a series of ilues, a a., which communicate at opposite ends with the combustion-chamber, and thus allow the products oi" 65 combustion to pass through them. Aside from augmenting the heating-surface of the cylinder, the fines a a serve to brace the cylinder and to stir and break up the substance under treatment in the cylinder, said substance be- 7c ing introduced through the trap-door e at the top of the front end ol the combustion-chamber, and in the rotation of said cylinder said substance is moved over the heated inner surface of the cylinder and stirred by the heated 7 5 ilu es u a. v

A door, j', is arranged at the rear end ofthe combustion-chamber to remove the desiccated substance.v To prevent leakage around the ends of the cylinder I provide the end plates, 83 l B, of the combustion-chamber with a segmental trough-shaped projection, t, which extends under the end of. the cylinder and has its inner wall abutting against the exterior of the cylinder, as rshown in Fig. I of the draw- S5 ings. This trough t reaches across the bottom and part way up the sides oi' the cylinder, so as to prevent the escape from said trough of the substance which may enter it 'from the cylinder. The accumulation of the substance 9o in the trough forms a packing around the lower portion of the cylinder, and thus effectually prevents leakage from the same. The troughs shown in my prior patent and in the application now on 'ille in the Patent Office g5 were arranged to discharge their contents, and consequently failed to prevent the leakage from the-cylinder.

Having described my invention, what I claim as new isl. In combination with the rotary cylinder C and combustion-chamber B, surround- IOO ing said cylinder and communicating with one end of the interior thereof, the' furnace A, eX- tended under the opposite end of the cylinder and communicating with the combustionchamber, the damper b, interposed between the furnace and combustion-chamber, iand the direct iiue D, provided with the damper d, all

constructed and combined substantially as described and shown.

2'. In combination with the combustionchamber, the rotary cylinder C, inclosed in said chamber, and i'lues a a, extending transversely through the cylinder, as shown and Set forth.

3. In combination with the rotary horizontal cylinder C, having open ends, and the com- HENRY BEEEE. [L su] Witnesses:

FREDERICK H. GIBBs, O. H. DUELL. 

